Contrary to popular belief, it is not actually the fur itself that causes allergies; it is mainly what clings to it. Cats naturally produce small...
When you drink coffee, caffeine acts directly on your blood vessels. Initially, it usually causes vasoconstriction, meaning it temporarily narrows the blood vessels. But after...
Your body has a sort of internal clock, called the circadian rhythm, which regulates your periods of wakefulness and sleep. This internal clock is heavily...
When injecting insulin, it must be delivered precisely subcutaneously, just under the skin. A very fine needle allows for more accurate administration at this level, without penetrating...
Ebola usually enters the body through contact with contaminated biological fluids, such as the blood or saliva of an infected person. Once it penetrates through...
Insulin is a hormone produced by the beta cells of the pancreatic islets of Langerhans. Its main role is to regulate blood sugar by allowing...
The diaphragm is that large dome-shaped muscle located beneath the lungs. It separates your thorax (where your lungs and heart are) from your abdomen, where...
Digesting a hearty meal is hard work for our bodies. To ensure digestion, the body heavily relies on the stomach, intestines, and liver. These organs...
Human babies naturally produce very high-pitched sounds, reaching very high frequencies and a shrill pitch. Our ears are more sensitive to these high frequencies, which...
Genetics partly explains why women generally live longer. First, it is important to know that women have two X sex chromosomes, while men have only...
